Rohde & Schwarz Spectrum Analyzer Frequency Extension from 5 kHz down to 100 Hz (software license)
The Rohde & Schwarz FSW-K70 Option (part number 1334.8532.02) is a software license that enables frequency extension for the FSW spectrum analyzer series, allowing the instrument's frequency analysis range to be extended from the standard lower limit of 5 kHz down to 100 Hz. This enhancement is particularly useful for applications requiring precise measurement and analysis of low-frequency signals, such as audio, vibration, or other baseband signals. The license is installed via a software key and does not require additional hardware. It is compatible exclusively with supported FSW models and must be activated on the instrument.
